JP2000062269A - Tape cartridge and tape-printing apparatus with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape cartridge and a tape-printing apparatus with the same whereby a let-off end part of a printing tape is prevented from being drawn into a cartridge case even if the printing tape is apt to be loosened. SOLUTION: The apparatus has a cartridge case 31, a printing tape 100 stored in the cartridge case 31 in a state while wound in a roll to be let off from a printing apparatus main body to be supplied for printing, and an inverse travel-blocking mechanism for blocking an inverse travel of the printing tape 100. The inverse travel-blocking mechanism is formed in an inner face of the cartridge case 31, and consists of wedge-like wall parts 48, 49 and 52 which have two blocking walls 48, 52 of an acute angle to an inverse travel direction facing a let-off route for the printing tape 100 and constitute a schematically wedge-like space 60 in plan view and, a rolling contactor 61 loosely fitted and stored in the wedge-like wall parts 48, 49, 52 which comes in touch with the printing tape 100 in accordance with the forward, inverse travel of the printing tape 100 and moves rolling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cartridge in which a printing tape for performing desired printing is housed in a cartridge case, and a tape printer including the tape cartridge.

[0002]

2. Description of the Related Art Conventionally, as this type of tape cartridge, there is known a tape cartridge which is detachably mounted on a tape printer disclosed in JP-A-6-122239. This tape cartridge contains a printing tape wound in a roll shape, an ink ribbon, and a platen. When the tape cartridge is mounted on the main body of the printing apparatus, printing is performed on the platen with the printing tape and the ink ribbon sandwiched. While the head is in contact and the printing tape and the ink ribbon are fed at the same time, desired printing is performed on the surface of the printing tape.

The printing tape is composed of a main body tape with an adhesive material on which printing is performed and a peeling tape to which the tape is adhered, and is housed in a cartridge case in a state where its feeding end portion is pulled out to the outside. Then, a reverse rotation preventing mechanism for preventing reverse rotation of the printing tape is incorporated between the core portion of the printing tape and the inner surface of the cartridge case so that the feeding end portion is not drawn into the cartridge case.

[0004]

In such a conventional tape cartridge, if the printing tape is stiff, the wound state tends to come apart, and even if the printing tape is prevented from reversing, Due to the loosening, there was a problem that the feeding end was pulled into the cartridge case.

The present invention provides a tape cartridge capable of preventing the feeding end portion of the printing tape from being pulled into the cartridge case even if the printing tape is easily loosened, and a tape printer including the tape cartridge. Its purpose is.

[0006]

A tape cartridge according to the present invention is detachably mounted in a printing apparatus main body, and is housed in a cartridge case in a state of being wound in a roll shape, and the tape cartridge is externally mounted by the printing apparatus main body. It is equipped with a printing tape that is used for printing while being fed out, and a reverse running prevention mechanism that prevents reverse running of the printing tape in the direction opposite to the feeding direction, and the reverse running blocking mechanism is formed on the inner surface of the cartridge case, A wedge-shaped wall portion that forms a substantially wedge-shaped space in plan view having two blocking walls that face the tape feeding path and forms an acute angle in the reverse running direction; It is characterized in that it has a rolling contact element that comes into contact with the printing tape and rolls and moves in accordance with reverse running.

According to this structure, when the printing tape starts to run backwards due to the impact of dropping or the looseness of the wound printing tape, the contacting element in contact with the printing tape causes the contact friction,
It moves towards the narrower of the two blocking walls and receives one blocking wall to clamp the printing tape between it and the other blocking wall. This prevents the print tape from running backwards. On the contrary, when the printing tape starts to run in the feeding direction, the rolling contact element in contact with the printing tape moves toward the wider side of the two blocking walls due to the contact friction, and the pinched state of the printing tape is released.

In this case, the cartridge case has a tape accommodation portion for accommodating the printing tape and a tape feeding portion for guiding the feeding of the printing tape, and the two blocking walls of the wedge-shaped wall portion are one of the tape accommodation portions. It is preferable that it is composed of a part and a part of the tape feeding part.

According to this structure, the two blocking walls of the wedge-shaped wall portion can be used as part of the tape accommodating portion and part of the tape feeding portion, so that the structure of the cartridge case can be simplified. In addition to being able to do so, it can be miniaturized.

In these cases, it is preferable that the rolling contact element is made of a cylindrical rubber extending in the tape width direction.

According to this structure, the rolling contact element can be uniformly contacted in the tape width direction of the printing tape, and when the printing tape is sandwiched between the other blocking wall, the rolling contact element and the printing tape. It is possible to effectively prevent slippage between the printing tape and the reverse direction of the printing tape.
In addition, no crease or the like is generated in the portion of the printing tape which comes into contact with the rolling contact element.

In this case, it is preferable that the rolling contact element is slightly bent in the free state.

According to this structure, even if the rolling contact element is accommodated in the wedge-shaped wall portion in a loosely fitted state, any part of the rolling contact element is always in contact with the printing tape, and the printing tape runs backward. At the same time that the start occurs, the rotator moves in the wedge-shaped wall portion and blocks it. Therefore, the reverse running of the printing tape can be instantaneously and reliably prevented.

In these cases, it is preferable that the printing tape is wound with the surface used for printing outside.

According to this structure, since the rolling contact element does not contact the printing surface of the printing tape, the printing surface is not damaged.

In this case, the printing tape has a large number of labels each having a front surface for printing and a back surface coated with an adhesive material,
It has a base tape to which a large number of labels are attached with label non-adhesive portions at both ends in the tape width direction, and one blocking wall forming a part of the tape feeding portion has a printing tape of It is preferable that a pair of guide wall portions are formed which are in sliding contact with both the label non-adhesive portions and guide the feeding of the printing tape.

According to this structure, the clamping force of the rolling contact element can be concentrated on both label non-adhesive portions of the printing tape, that is, both widthwise end portions of the printing tape. Further, the label does not come into contact with the pair of guide wall portions that receive the gripping force, and it is possible to prevent the label from sliding and coming off the guide wall portion when the printing tape runs in the forward and reverse directions.

In these cases, both end faces of the printing tape are
It is preferable that a pair of films, which allow the printing tape to be fed out and hold the winding state of the printing tape, are attached.

According to this structure, it is possible to prevent the printing tape wound in a roll from coming loose, and it is possible to reduce the cause of reverse running of the printing tape.

In these cases, the cartridge case is composed of an upper case and a lower case which are detachably engaged with each other, and the upper case and the lower case are detachably attached across both cases and have attributes of the printing tape. It is preferable that the detachment is prevented by an adhesive seal indicating.

According to this structure, by peeling the seal and disassembling the upper case and the lower case, only the printing tape can be exchanged, and the adhesive seal is attached in the state where the upper case and the lower case are assembled. As a result, it is possible to effectively prevent the upper case and the lower case from being disassembled due to a shock or the like.

A tape printer according to the present invention is characterized in that the tape cartridge according to any one of claims 1 to 8 is detachably provided.

According to this structure, it is possible to prevent the feeding end portion of the printing tape from being pulled into the cartridge case due to a shock or the like when the tape cartridge is replaced. can do.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tape cartridge according to an embodiment of the present invention and a tape printer including the same will be described below with reference to the accompanying drawings. This tape printing device prints (prints) desired characters or figures on a printing tape mounted in the device via a tape cartridge and cuts a printed portion of the printing tape to a predetermined length. is there. More specifically, an adhesive label dedicated to MD (mini disk) is built in the printing tape, and the tape printing apparatus performs desired printing on the surface of this adhesive label. Then, the adhesive label after printing is peeled from the printing tape and attached to a predetermined position of the MD (cassette).

FIG. 1 is an external perspective view of the tape printing apparatus with the lid opened. As shown in FIG.
The printer main body 2 is composed of a printer cartridge 2 and a tape cartridge 3 which is detachably attached to the printer cartridge 2. The printer cartridge 2 has an outer shell formed by two upper and lower divided device cases 4. A keyboard 5 made up of various input keys 5a is arranged on the front upper surface of the device case 4, and a display 6 is provided on the rear upper surface.
An opening / closing lid 7 and a lid opening button 8 that opens the lid 7 are provided. Inside the opening / closing lid 7, the tape cartridge 3
The cartridge mounting portion 9 for mounting the tape cartridge 3 is formed in a recess, and the tape cartridge 3 is mounted and dismounted from the cartridge mounting portion 9 with the opening / closing lid 7 opened. Further, the cartridge mounting portion 9 is provided on the left side of the device case 4.
Is formed with a tape discharge port 10 that communicates with the outside of the device,
A tape cutter (not shown) for cutting the fed printing tape 100 faces the tape outlet 10. Further, a cutter button 11 for cutting the tape cutter is disposed on the left rear portion of the device case 4.

On the other hand, in the cartridge mounting portion 9, the print head 14 covered with the head cover 13 and the print head 1
4, the platen 15 facing the 4 and the take-up reel drive shaft 16
A guide protrusion 17 is provided upright to guide the mounting of the tape cartridge 3. The platen 15 and the take-up reel drive shaft 16 are provided below the cartridge mounting portion 9.
A tape feeding mechanism (not shown) for rotating the device is built in. Reference numeral 18 in the drawing denotes a head operation plate, and when the opening / closing lid 7 is closed, the head operation plate 18 causes the print head 14 to rotate to a printing position where the platen 15 is pressed to enable printing. .

After mounting the tape cartridge 3 in the cartridge mounting portion 9, the user inputs print information such as desired characters using the keyboard 5, and at the same time confirms the input result on the display 6 and edits it. next,
When printing is instructed via the keyboard 5, the tape feeding mechanism is driven to move the tape cartridge 3 to the printing tape 1.
At the same time when 00 is delivered, the print head 14 is driven,
Desired printing is performed on the adhesive label 110 portion of the printing tape 100. Alternatively, a mini disk player (not shown) is connected to the printing apparatus main body 2, the index data stored in the MD is read, the data is edited, and the adhesive tape 110 of the printing tape 100 is printed.

The printed portion of the printing tape 100 is continuously sent out from the tape discharge port 10 in parallel with the printing operation. In this way, when the desired printing is completed, the tape feeding mechanism stops the feeding operation. Here, when the user presses the cutter button 11 arranged on the left rear part of the device case 4, the tape cutter is operated and the printing tape 100 with the adhesive label is cut to a desired length.

As shown in FIGS. 2 and 3, the outer shell of the tape cartridge 3 is formed by a cartridge case 31 composed of an upper case 31a and a lower case 31b. The upper case 31a and the lower case 31b are engaged with each other in a snap-in manner (see FIGS. 4 and 5), and in the engaged state, separated by an adhesive seal 32 that describes the type of the tape cartridge 3 and the like. They are permanently joined (see Figure 2). The adhesive seal 32 is configured to be peelable, and by peeling it off and removing the upper case 31a, the used printing tape 100 or the like can be replaced.

Inside the cartridge case 31, the printing tape 100 wound around the tape core 120 in a roll shape is provided.
And the ink ribbon 200 whose one end is wound around the pay-out core 210 and whose other end is wound around the take-up core 220. The printing tape 100 is fed from the tape core 120, while the ink ribbon 200 is fed from the feeding core 2.
After being unwound from 10, the printing tape 100 overlaps and runs side by side, it is wound around the winding core 220.

Further, the printing tape 100 and the ink ribbon 2
An opening 34 facing the print head 14 and the platen 15 is formed in a portion overlapping 00 (see FIG. 10). When the tape cartridge 3 is mounted in the cartridge mounting portion 9, the print head 14 and the platen 15 are inserted into the opening 34 so as to sandwich the print tape 100 and the ink ribbon 200. At the same time, the winding core 22
The take-up reel drive shaft 16 is inserted into the hollow portion of 0. When the platen 15 and the take-up reel drive shaft 16 rotate in synchronization with each other, the printing tape 100 and the ink ribbon 200 are sent at the same time, and the print head 14 is driven to perform printing. The printing completed portion of the printing tape 100 is sent out from the tape delivery port 35 formed in the cartridge case 31 toward the tape ejection port 10 of the device case 4.

The printing tape 100 is formed by adhering a release tape (base tape) 102 to a printing tape body 101 having an adhesive material, and the printing tape body 101 is provided with a large number of adhesives by cutting a rectangular cut line. Labels 110 are formed side by side. That is, the adhesive label 110
Is formed by half-cutting a tape with so-called release paper. The parts other than the part where the adhesive label 110 is formed, that is, the left and right vertical non-label parts 111,
The printing tape 100 is a portion to be cut, and the upper and lower lateral non-label portions (label non-adhesion portions) 112 are the printing tape 10.
This is the part where 0 travel (feeding) is guided.

The printing tape 10 wound in a roll shape
A pair of front and back films 130, 130 are attached to both end surfaces of 0. The film 130 is the printing tape 100.
The printing tape 10 is attached to both end surfaces of the printing tape 100 with an adhesive force that does not affect the feeding of the printing tape 10
It prevents the dispersion of 0. Although the adhesive label 110 of the embodiment is to be attached (size) to the front and back surfaces of the MD cassette or cassette case, it is attached to the side surface of the MD cassette separately from the printing tape 100. Printing tape with a long and narrow adhesive label for
It is prepared to be mounted on a tape cartridge.

As shown in FIG. 3, FIG. 4 and FIG.
A tape accommodating portion 41, which is formed in a circular shape except for a portion serving as a feeding opening of 0, and a tape feeding portion 42 which is continuous with the tape accommodating portion 41 are provided. The tape accommodating portion 41 includes an upper tape accommodating wall 44 formed to project on the inner surface of the upper case 31a.
a and a lower tape housing wall b formed to project on the inner surface of the lower case 31b, and similarly, the tape feeding portion 42
Is the upper tape feeding wall 4 connected to the upper tape housing wall 44a.
5a and a lower tape feeding wall 45b connected to the lower tape housing wall 44b. Both upper and lower tape feeding wall 4
5a and 45b form a feeding port for the printing tape 100 between the ends of the upper and lower tape accommodating walls 44a and 44b, and are curved in an eddy curve toward the tape delivery port 35 and in the vicinity of the opening 34. Has been extended to.

The upper tape accommodating wall 44a has a substantially circular peripheral wall portion (sub guide wall portion) 46 and a plurality of projecting portions 47 formed on the inner surface of the peripheral wall portion 46 at equal intervals. The strip portion 47 is adapted to be in sliding contact with the upper lateral non-label portion 112 of the contained printing tape 100. Similarly, the lower tape accommodating wall 44b has a substantially circular peripheral wall portion 46 and a peripheral wall portion 46.
And a rising wall 48 having a plurality of projecting portions 47 formed at equal intervals on the inner surface thereof and having a peripheral wall portion 46 that is back-to-back with the opening wall 36 that constitutes the opening portion 34. , And a protruding wall 49 protruding outside the rising wall 48. In this case as well, the protruding portion 47 slides on the lateral non-label portion 112 on the lower side of the accommodated printing tape 100.

The upper tape feeding wall 45a has a curved portion 51 which is continuous with the peripheral wall portion 46 of the upper tape housing wall 44a and the curved portion 5.
1 and a guide wall portion (main guide wall portion) 52 formed inside 1, and the tip of the guide wall portion 52 extends ahead of the curved portion 51. The guide wall portion 52 is arranged on an extension of the plurality of protruding portions 47, and is slidably in contact with the lateral non-label portion 112 on the upper side of the printing tape 100, like the protruding portions 47. The lower tape storage wall 45b is the lower tape storage wall 4
It has a partition wall portion (support wall portion) 53 which is continuous with the peripheral wall portion 46 of 4b and is formed at the same height as the rising wall 48, and a guide wall portion 52 which is formed inside the partition wall portion 53. Also in this case, the guide wall portion 52 has its tip extending ahead of the partition wall portion 53, and is in sliding contact with the lateral non-label portion 112 on the lower side of the printing tape 100.

The partition 53 divides the printing tape 100 side and the ink ribbon 200 side from each other so that the ink ribbon 200 does not come into contact with the printing tape 100 when the ink ribbon 200 sags. It divides the space. As a result, it is possible to prevent the ink ribbon 200 from sticking to the adhesive material protruding from the edge of the adhesive label 110 and causing jamming.

On the other hand, a cylindrical protrusion 55 and a cross-shaped rib 56 are formed on the upper case 31a located at the center of the inside of the upper tape accommodating wall 44a. Similarly, a cylindrical protrusion 56 and a cross-shaped rib 56 are formed on the lower case 31b located at the inner center portion of the lower tape housing wall 44b. The upper and lower cylindrical protrusions 55, 55 are portions on the outer peripheral surface of which the tape core 120 of the printing tape 100 is rotatably supported, and the inner peripheral surface of which mounts the tape cartridge 3 on the cartridge mounting portion 9. At times, it becomes a portion that fits into the guide protrusion 17.

When the printing tape 100 is set in the tape accommodating portion 41 constructed as described above, as shown in FIGS. 3 and 6, the lateral non-label portion 11 on the upper side of the printing tape 100.
2, the plurality of protrusions 47 of the upper tape accommodation wall 44a and the guide wall 52 of the upper tape feeding wall 45a face each other, and the plurality of protrusions of the lower tape accommodation wall 44b are provided on the lower lateral non-label portion 112. The portion 47 and the guide wall portion 52 of the lower tape feeding wall 45b face each other. Therefore, when the printing tape 100 is fed out, both lateral non-label portions 112, 112 of the printing tape 100 are guided by the guide wall portions 52, 52 and are fed while slidingly contacting them. In addition, when the printing tape 100 comes apart, a plurality of protrusions 47
Also functions as a guide member, and the printing tape 100 is sent out while being in sliding contact with both lateral non-label portions 112, 112.

Therefore, the adhesive label 110 of the printing tape 100 that is being fed out is not contacted with these guide members at all, and is used for printing even if the adhesive material is easily peeled off due to protrusion or the like. The adhesive label 110 does not come off before. In addition, the tip of each of the protrusions 47 is inclined so that the insertion of the printing tape 100 into the tape accommodating portion 41 can be guided.

On the other hand, the rising wall (peripheral wall portion 46) 48 and the protruding wall 49 of the lower tape accommodating wall 44b, and both guide wall portions (partition wall portion 53) of the upper and lower tape feeding walls 45a and 45b.
In the wedge-shaped space 60 formed by 52 and 52, a stop roller 61 that blocks the reverse running of the printing tape 100 is accommodated in a loose fit state. That is, the rising wall (peripheral wall portion 4
6) 48 and protruding wall 49 and both guide wall portions (partition wall portion 5
3) 52, 52, the rising wall 48 and both guide wall portions 5
2 and 52 form a wedge-shaped wall portion forming an acute angle, and the wedge-shaped wall portion and the stop roller 61 form a reverse running prevention mechanism of the printing tape 100.

The stop roller 61 is made of cylindrical rubber or the like, and as shown in FIG. 7, is formed to have substantially the same size as the size between the upper case 31a and the lower case 31b.
The stop roller 61 is flexible and slightly bent in the free state. Therefore, the stop roller 61 accommodated in the wedge-shaped space 60 is always in contact with the printing tape 100 at any part in the longitudinal direction thereof. Therefore, when the printing tape 100 runs in the forward and reverse directions, it receives the sliding resistance and moves in the wedge-shaped space 60.

That is, as the printing tape 100 is fed out, the stop roller 61 contacts the printing tape 100 and rolls to move to the protruding wall 49 side to allow the printing tape 100 to run. On the other hand, when the printing tape 100 runs in the opposite direction to the feeding direction, the stop roller 61
Moves toward the narrowed portion between the rising wall 48 and both guide wall portions 52, 52 while rolling in contact with the printing tape 100. Due to this movement, the stop roller 61 is
The printing tape 100 is sandwiched between the rising wall 48 and both guide wall portions 52, 52, and while receiving a reaction force from the rising wall 48, the printing tape 100 is strongly sandwiched between the rising wall 48 and both guide wall portions 52, 52 for printing. Prevent the tape 100 from running backwards.

As described above, since the reverse running of the printing tape 100 can be prevented, the printing tape 1 may be damaged by some impact.
Even if the feeding end of 00 is about to be drawn into the cartridge case 31, this drawing can be prevented. Further, at this time, the portion pressed and sandwiched between the guide wall portions 52, 52 by the stop roller 61 is the printing tape 1
00, the adhesive label 110 is not peeled off even in the reverse running prevention operation.

The tape delivery port 35, as shown in FIG.
Over the upper case 31a and the lower case 31b are formed in a slit shape as a whole, and the narrow portions 63, 63 located at the upper and lower ends, and the wide portion 64 located between the narrow portions 63, 63 are formed. It is composed of. Both narrow parts 63, 63 are
Both lateral non-label parts 11 of the printing tape 100 passing here
2, 112, and the wide portion 64 corresponds to the position of the adhesive label 110. When the printing tape 100 passes through the tape delivery port 35, both lateral non-label parts 11
2, 112 slidably contact the narrow portions 63, 63 so as to be guided to the narrow portions 63, 63, while the adhesive label 110 passes through the edge of the tape delivery port 35 without any contact. Therefore, the adhesive label 110 does not peel off even at the tape delivery port 35.

On the other hand, as shown in FIG. 3, the ink ribbon 200 is unwound from the unwinding core 210, overlaps with the printing tape 100 in the vicinity of the above-mentioned reverse run preventing mechanism, crosses the opening 34 as it is, and further the opening wall 36. It runs along with and is wound up by the winding core 220. In this case, the feed-out core 210 on the driven side is braked by the braking mechanism described later so that the ink ribbon 200 does not sag. Further, the winding core 220 on the drive side is prevented from free rotation by a reverse rotation preventing mechanism described later so that the ink ribbon 200 does not sag in a state where the tape cartridge 3 is not mounted on the printing apparatus main body 2. ing.

As shown in FIG. 3, FIG. 4, FIG. 5 and FIG. 9, the pay-out core 210 has a cylindrical upper shaft-shaped projection 71 formed on the inner surface of the upper case 31a and an inner surface of the lower case 31b. It is rotatably supported by a cylindrical lower shaft-shaped projection 72 formed coaxially with the upper shaft-shaped projection 71. The upper shaft-shaped projection 71 is formed short, and the lower shaft-shaped projection 72 is formed.
Is formed long so that the lower half of the feeding core 210 is engaged (see FIG. 9). In the lower shaft-shaped protrusion 72,
A part thereof is removed in an inverted “U” shape to form a sliding contact piece portion 73 having a spring property. A braking spring 75 that biases the sliding contact piece 73 from the inside is inserted into the hollow portion 74 of the lower shaft-shaped projection 72. That is, the sliding contact piece 7
A braking mechanism that presses the inner peripheral surface of the feeding core 210 in the radial direction by 3 and the braking spring 75 to brake the rotation of the feeding core 210 is configured.

The braking spring 75 is a wire (for example, a piano wire).
Is formed by bending, and is composed of a spring main body 75a bent in a substantially "U" shape, and a ring portion 75b in which one end of the spring main body is bent in a circular shape. Braking spring 75
Is inserted into the hollow portion 74 from below, and the ring portion 7
5b contacts the sliding contact piece 73 and presses it,
The other end is in contact with the inner surface of the upper end of the lower shaft-shaped projection 72. It should be noted that the hollow portion 74 of the lower shaft-shaped projection 72 is formed by the braking spring 7.
In order that 5 may be inserted in an appropriate posture, the cross section thereof is formed into a rectangle having the inner surface of the sliding contact piece portion 73 as a short side (see FIG. 3).

The sliding contact piece 73 is a main body 73 having a spring property.
a and the urging end portion 7 in contact with the inner peripheral surface of the feeding core 210
3b, and a sliding contact surface 73c having a shape complementary to the inner peripheral surface of the feeding core 210 is formed on the outer surface of the biasing end portion 73b. That is, the sliding contact piece portion 73 is in sliding contact with the inner peripheral surface of the payout core 210 over a relatively wide area, and can provide a stable braking force to the payout core 210. In addition, the first locking protrusion 73 is formed on the inner surface of the biasing end portion 73b.
While the d is formed, a second locking projection 72a is formed on the inner surface of the upper end portion of the lower shaft-shaped projection 72 corresponding to the first locking projection 73d. When the braking spring 75 is inserted into the hollow portion 74, the ring portion 75b rides over the first locking projection 73d, and then the other end contacts the second locking projection 72a, so that the braking spring 75 moves downward. It is properly set on the axial protrusion 72. Further, with respect to the set braking spring 75, the first locking projection 73d acts as a downward pullout prevention, and the second locking projection 72a acts as an upward pullout prevention.

In such a structure, the urging end 73b of the sliding contact piece 73 presses the inner peripheral surface of the feeding core 210 by the braking spring 75, and when the feeding core 210 rotates, the urging end 73b slides. The contact surface 73c is in sliding contact with the inner peripheral surface of the feeding core 210. Therefore, even if the inner peripheral surface of the pay-out core 210 has irregularities, it can be absorbed and a stable spring force can be imparted. Therefore, the braking force (sliding friction) is also stable, and it is possible to apply the back tension with little fluctuation to the ink ribbon 200.

The winding core 220 has a circular upper shaft hole 81 formed in the upper case 31a and a circular lower shaft hole (not shown) formed coaxially with the upper shaft hole 81 in the lower case 31b. And, it is rotatably supported. Winding core 2
A plurality of protrusions 221 are formed in the circumferential direction on the inner peripheral surface of 20, and when the tape cartridge 3 is attached to the printing apparatus main body 2, the winding reel drive shaft 16 meshes with the protrusions 221. The winding core 220 can be driven to rotate (see FIG. 10). At the lower end of the winding core 220, a ratchet-shaped lock receiving portion (not shown) is formed. The lock claw member 91 mounted on the lower case 31b is engaged with and disengaged from the lock receiving portion. That is, by the lock receiving portion and the lock claw member 91,
A reverse rotation preventing mechanism that prevents reverse rotation of the winding core 220 is configured.

The lock claw member 91 includes a member main body 93 rotatably mounted on a pin-shaped projection 92 provided upright on the lower case 31b, a claw portion 94 extending from the member main body 93 toward the winding core 220, and a member. The spring piece portion 95 and the release piece portion 96 extending from the main body 93 in a “V” shape are integrally formed. When the tape cartridge 3 is not attached to the printing apparatus main body 2, as shown in FIG. 3, the claw portion 94 moves toward the winding core 220 side around the pin-shaped projection 92 due to the biasing action of the spring piece portion 95. It is urged to rotate, and the tip of the claw portion 94 is locked to the lock receiving portion of the winding core 220. This allows
Forward rotation of the winding core 220 is allowed (because of the ratchet wheel shape).
However, reversal is prevented.

On the other hand, when the tape cartridge 3 is mounted on the printing apparatus main body 2, as shown in FIG. 10, the cam projection 9 formed on the cartridge mounting portion 9 of the printing apparatus main body 2
The release piece 96 is engaged with a, and the claw 94 is rotated in the opposite direction against the spring piece 95 to disengage it from the lock receiving portion of the winding core 220. As a result, the winding core 220
The locked state by the lock claw member 91 is released. At this time, the take-up core 220 and the take-up reel drive shaft 16
Mesh with each other, and the winding core 220 can rotate without resistance with respect to the lock claw member 91.

[0054]

As described above, according to the tape cartridge and the tape printing apparatus of the present invention, the reverse running of the printing tape can be instantaneously prevented by the wedge action of the two blocking walls against the roller. Even when the printing tape is easily loosened, the feeding end portion can be prevented from being drawn into the cartridge case. By mounting this tape cartridge, the reliability and usability of the device can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a tape printer according to an embodiment of the present invention with a tape cartridge removed.

FIG. 2 is an external perspective view of a tape cartridge.

FIG. 3 is a plan view of the tape cartridge with an upper case removed.

FIG. 4 is an exploded perspective view of a lower case of the tape cartridge.

FIG. 5 is an exploded perspective view of an upper case of the tape cartridge.

FIG. 6 is a vertical cross-sectional view around the printing tape of the tape cartridge.

FIG. 7 is a vertical cross-sectional view around the reverse feeding prevention mechanism of the tape cartridge.

FIG. 8 is a front view of the tape cartridge around the tape delivery port.

FIG. 9 is a vertical cross-sectional view around a feeding core of a tape cartridge.

FIG. 10 is a plan view of the tape cartridge mounted in the tape printer.

[Explanation of symbols]

1 tape printer 2 Printer main body 3 tape cartridges 9 Cartridge mounting part 31 cartridge case 32 Adhesive sheet 35 tape outlet 41 tape storage 42 Tape feeding section 46 Peripheral wall 47 Projection 48 rising wall 49 Projection wall 52 Guide wall 53 Partition 60 wedge-shaped space 61 stop roller 63 narrow part 64 wide part 100 printing tape 101 Printing tape body 102 release tape 110 Adhesive label 112 Horizontal non-label part 130 films

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2C055 CC01 CC05                 2C060 BA00 BA04 BA09                 2C061 AP05 AQ04 AS06 AS08 CF06                 2C068 EE27 EE53                 3E095 BA03 CA02 DA03 DA06 FA07

Claims (9)

[Claims] 1. A cartridge case detachably mounted on a printing apparatus main body, and a printing which is accommodated in the cartridge case in a rolled state and is used for printing while being fed out of the case by the printing apparatus main body. A reverse running prevention mechanism for blocking reverse running of the printing tape in a direction opposite to the feeding direction, wherein the reverse running blocking mechanism is formed on an inner surface of the cartridge case, and is provided in a feeding path of the printing tape. A wedge-shaped wall portion that has two blocking walls that face each other and form an acute angle in the reverse running direction to form a substantially wedge-shaped space in plan view; A tape cartridge characterized by having a rolling contact element that rolls and moves in contact with the printing tape. 2. The cartridge case has a tape housing portion for housing the printing tape, and a tape feeding portion for guiding the feeding of the printing tape, wherein the two blocking walls of the wedge-shaped wall portion are tape housing portions. The tape cartridge according to claim 1, wherein the tape cartridge is constituted by a part of a part and a part of the tape feeding part. 3. The tape cartridge according to claim 1, wherein the rolling contact element is made of rubber having a cylindrical shape extending in the tape width direction. 4. The tape cartridge according to claim 3, wherein the rolling contact element is slightly bent in a free state. 5. The tape cartridge according to claim 1, wherein the printing tape is wound with a surface used for printing outside. 6. The printing tape comprises a large number of labels having a front surface used for printing and a back surface coated with an adhesive material, and a large number of labels having label non-adhesive parts at both ends in the tape width direction. Has a base tape adhered thereto, and the one blocking wall that constitutes a part of the tape feeding portion slides on the both label non-adhesive portions of the printing tape to feed the printing tape. The tape cartridge according to claim 5, wherein a pair of guide wall portions for guiding is formed. 7. A pair of films are attached to both end surfaces of the printing tape to allow the printing tape to be fed out and to hold the winding state of the printing tape. 7. The tape cartridge according to any one of 1 to 6. 8. The cartridge case is composed of an upper case and a lower case that are detachably engaged with each other, and the upper case and the lower case are detachably attached across the both cases to perform the printing. The tape cartridge according to any one of claims 1 to 7, wherein the tape cartridge is prevented from being detached by an adhesive seal that indicates the attributes of the tape. 9. A tape printing apparatus comprising the tape cartridge according to claim 1 detachably provided.